Why does the air get cooler just before a tornado forms?

Question

Why does the air get cooler just before a tornado forms?

Answer 1

Because, It Forms On Hot Days. But, In Order For A Tornado To Form Their Must Be Cold Air. ( Trust Me, I Love Tornadoes. )

Answer 2

Its due to heavy amounts of precipitation. The large amounts of rain greatly cool the air, which sinks because cold air is heavier than warm air.

Answer 3

The front end of the storm blows air out from the top of the clouds.  This air comes from the location of the storm that produces hail.  This air is heated as it drops but feels like a nice air conditioner has been turned on outside.